A lifting device with posture adjustment function

Abstract

The present invention provides a sling with a posture adjustment function, belonging to the technical field of slings, the sling comprises: a clamping disk, at least three claws are arranged along a circumferential array at the bottom, and the claws are arranged to move radially along the clamping disk; a guiding element is arranged on the top of the clamping disk, and a connecting piece is arranged on the guiding element, the first end of the guiding element is located on the extension line of the axis of the clamping disk, the second end of the guiding element has a predetermined distance from the axis of the clamping disk, and the distance between the second end and the clamping disk is smaller than the distance between the first end and the clamping disk, the plane formed by the trajectory of the guiding element and the axis of the clamping disk is perpendicular to the clamping disk, the connecting piece is movably arranged between the two ends of the guiding element; the connecting piece is rotatably provided with a lifting lug. This scheme can adjust the posture of parts during the lifting process, which is convenient for switching the posture of plate-like parts.

Description

Technical Field

[0001] The invention belongs to the field of slings, and in particular relates to a sling with a posture adjustment function. Background Art

[0002] Plate-like parts, especially circular plate-like parts, are usually placed in a horizontal position to ensure stability during storage. When such parts need to be installed or turned, they usually need to be adjusted to a vertical position. The current common method is to manually stand up the horizontally placed parts, and then use a sling to lift and transfer the parts. The process requires manual assistance to stand up the parts, which is laborious and poses a safety hazard of being hit. The reason for this is that the existing slings cannot adjust the posture of the parts during the lifting process, and cannot adjust the parts from a horizontal state to a vertical state during the lifting process. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the present invention provides a hoist with a posture adjustment function, which can adjust the posture of parts during the hoisting process, making it easy to switch the posture of plate-like parts.

[0004] In order to achieve the purpose of the present invention, the following scheme is proposed:

[0005] A lifting device with posture adjustment function comprises: a clamping plate, at least three claws are arranged in a circumferential array at the bottom of the clamping plate, and the claws are arranged to move radially along the clamping plate;

[0006] A guiding element is provided on the top of the clamping disk, and a connecting piece is provided on the guiding element. The first end of the guiding element is located on the extended line of the axis of the clamping disk, and a predetermined distance is provided between the second end of the guiding element and the axis of the clamping disk, and the distance between the second end and the clamping disk is smaller than the distance between the first end and the clamping disk. The plane formed by the trajectory of the guiding element and the axis of the clamping disk is perpendicular to the clamping disk, and the connecting piece is movably arranged between the two ends of the guiding element.

[0007] The connecting piece is rotatably provided with a lifting lug.

[0008] The beneficial effect of the present invention is that the present invention adjusts the position of the overall force point of the sling by moving the connecting piece, so that the clamping plate is automatically flipped to achieve the purpose of adjusting the posture of the plate-like parts, thereby reducing manual auxiliary work, reducing work intensity, and improving safety during the parts transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0010] Figure 1 A schematic structural diagram of a preferred embodiment of the present invention is shown.

[0011] Figure 2 A cross-sectional view of a preferred embodiment of the present invention is shown.

[0012] Figure 3 The state view of the preferred embodiment of the present invention is shown when the clamping plate is in a vertical state.

[0013] Figure 4 A structural schematic diagram of another preferred embodiment of the present invention is shown.

[0014] Markings in the figure: clamping plate-1, connecting groove-11, adjusting screw rod-12, gear-13, gear ring-14, claw-2, guiding element-3, connecting piece-31, rope-32, lifting eye-4, counterweight-5. DETAILED DESCRIPTION

[0015] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the implementation modes of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] like Figures 1 to 4 As shown, a lifting device with posture adjustment function comprises: a clamping disc 1, at least three clamping claws 2 are arranged in a circular array at the bottom of the clamping disc 1, and the clamping claws 2 are arranged to move radially along the clamping disc 1 for clamping disc-shaped parts.

[0017] As a preferred structure, the position of the clamping jaw 2 can be adjusted by a screw. Specifically, the screw can be rotatably installed on the clamping disk 1 so that the axis of the screw intersects with the axis of the clamping disk 1, and the screw passes through the clamping jaw 2. The end of the clamping jaw 2 is slidably connected to the clamping disk 1, and the clamping jaw 2 can be driven to move by rotating the screw.

[0018] Specifically, a guiding element 3 is provided on the top of the clamping disk 1, and a connecting member 31 is provided on the guiding element 3. The first end of the guiding element 3 is located on the extension line of the axis of the clamping disk 1, and the second end of the guiding element 3 has a predetermined distance from the axis of the clamping disk 1, and the distance between the second end and the clamping disk 1 is smaller than the distance between the first end and the clamping disk 1. The plane formed by the trajectory of the guiding element 3 and the axis of the clamping disk 1 is perpendicular to the clamping disk 1. The trajectory of the guiding element 3 refers to the trajectory between the first end and the second end of the guiding element 3. The connecting member 31 is movably arranged between the two ends of the guiding element 3, that is, the connecting member 31 moves along the trajectory between the two ends of the guiding element 3.

[0019] The connecting piece 31 is rotatably provided with a lifting lug 4 .

[0020] To facilitate understanding of the present solution, this embodiment is described by taking the process of adjusting a horizontal plate-shaped part to a vertical state as an example; Figure 1 , Figure 2 or Figure 4 The lifting device shown is connected to the sling through the lifting ear 4, and the connecting member 31 is moved to the first end of the guiding element 3. Because the first end of the guiding element 3 is located on the extension line of the axis of the clamping disk 1, the pulling force applied to the connecting member 31 through the lifting ear 4 will be vertically upward along the axis of the clamping disk 1, so that the clamping disk 1 is in a horizontal state. At this time, the claw 2 is downward, and the horizontal plate-like parts are clamped by the claw 2; then the lifting device is used to lift the sling as a whole, and the connecting member 31 is moved to the second end of the guiding element 3. In this process, the pulling force applied to the connecting member 31 through the lifting ear 4 will gradually deviate from the axis of the clamping disk 1, and form an angle with the axis of the clamping disk 1. The side of the clamping disk 1 opposite to the second end of the guiding element 3 will gradually fall, so that the bottom surface of the clamping disk 1 begins to tilt upward, as shown in FIG. Figure 3 As shown, until the clamping plate 1 tends to be in a vertical state, the moving connecting member 31 can be stopped. In this way, the posture of the parts can be adjusted during the suspension process, so that the plate-like parts in the horizontal state are in a vertical state. Similarly, the plate-like parts in the vertical state can also be adjusted to a horizontal state by the above method, but when clamping, the connecting member 31 needs to be close to the second end of the guiding element 3 to make the clamping plate 1 in a vertical state; when the parts are clamped, the connecting member 31 is moved toward the first end of the guiding element 3 until the connecting member 31 moves to the first end of the guiding element 3, so that the pulling force applied by the lifting ear 4 to the connecting member 31 is vertically upward along the axis of the clamping plate 1, so that the clamping plate 1 can be in a horizontal state.

[0021] Preferably, Figures 1 to 4As shown, a counterweight 5 is provided between the top of the clamping disk 1 and the guiding element 3, and is moved along a predetermined trajectory. The direction of the predetermined trajectory is consistent with the direction of the trajectory of the guiding element 3. The consistent direction referred to here only indicates the direction, and does not mean that the two are parallel to each other or that the directions of the two are absolutely the same. The lower end of the predetermined trajectory is located on the extension line of the axis of the clamping disk 1, and there is a predetermined distance between the upper end of the predetermined trajectory and the axis of the clamping disk 1. Because the predetermined trajectory is consistent with the trajectory direction of the guiding element 3, and the lower end of the predetermined trajectory is located on the extension line of the axis of the clamping disk 1, the upper end of the predetermined trajectory and the second end of the guiding element 3 are respectively on opposite sides of the axis of the clamping disk 1, and the distance between the upper end of the predetermined trajectory and the clamping disk 1 is greater than the distance between the lower end of the predetermined trajectory and the clamping disk 1. By moving the counterweight 5 along the predetermined trajectory, the posture of the clamping disk 1 can be assisted in adjusting. For example, when the connecting member 31 moves from the first end to the second end of the guiding element 3, the clamping disk 1 will gradually change from a horizontal state to a vertical state. Because the upper end of the predetermined trajectory and the second end of the guiding element 3 are respectively located on the two sides opposite to the axis of the clamping disk 1, if the counterweight 5 is moved from the lower end to the upper end of the predetermined trajectory at this time, the weight of the clamping disk 1 on the side opposite to the second end of the guiding element 3 can be increased to make the clamping disk 1 rotate quickly. In addition, the weight away from the end of the clamping disk 1 can be increased to balance the weight at both ends centered on the connecting member 31, so that the clamping disk 1 can be more accurately and quickly in a vertical state.

[0022] Further preferably, Figure 2 , Figure 3 As shown, the connecting member 31 and the counterweight 5 are connected by a rope 32, and the rope 32 passes around the intersection of the first end of the guiding element 3 and the upper end of the predetermined trajectory; when the connecting member 31 is at the first end of the guiding element 3, the counterweight 5 is at the lower end of the predetermined trajectory. At this time, the tension applied to the connecting member 31 by the lifting ear 4 and the counterweight 5 are both on the extension line of the axis of the clamping plate 1, so that the clamping plate 1 can be in a horizontal state, and because of the weight of the counterweight 5, the horizontal posture of the clamping plate 1 can be made more stable. Through the above-mentioned structural setting, when the connecting member 31 moves toward the second end of the guiding element 3, the counterweight 5 can be driven by the rope 32 to automatically move to the upper end of the predetermined trajectory, so as to synchronously adjust the position of the connecting member 31 and the counterweights at both ends of the connecting member 31 as the force point, so that the two ends of the connecting member 31 can quickly reach a balanced state; and when clamping plate-like parts of different weights, the present scheme can automatically adapt and can make the two ends of the connecting member 31 reach a balanced state; and when the connecting member 31 moves from the second end of the guiding element 3 to the first end, the clamping plate 1 will gradually change from a vertical state to a horizontal state, and when the clamping plate 1 is tilted to a predetermined angle, the counterweight 5 will automatically move from the upper end to the lower end of the predetermined trajectory.

[0023] As a preferred structure, the predetermined trajectory and the guide element 3 can be set as two rods with the same direction or parallel to each other, the lower end of the rod is connected to the clamping plate 1, and the counterweight 5 and the connecting member 31 are slidably arranged on the two rods respectively.

[0024] As another preferred structure, a mounting plate is vertically provided on the top surface of the clamping disk 1, and the predetermined trajectory is a strip hole or a slide groove opened on the mounting plate, and the counterweight 5 is slidably arranged in the strip hole or the slide groove; the guiding element 3 is a screw rod or a hydraulic cylinder, which is arranged on the mounting plate, and a T-slot or a long hole is provided on the mounting plate along the trajectory of the guiding element 3, and the connecting member 31 is slidably arranged in the T-slot or the long hole, and is driven by a screw rod or a hydraulic cylinder; further, the screw rod can be installed in the T-slot or the long hole, and the movable rod of the hydraulic cylinder can be parallelly inserted into the T-slot or the long hole.

[0025] More specifically, the screw rod is driven by a motor, which can not only automatically adjust the position of the connecting piece 31, but also drive the counterweight 5 to move together, further improving the degree of automation of the sling posture adjustment and completely avoiding manual auxiliary work. The motor can be arranged on the clamping plate 1 or the mounting plate.

[0026] Preferably, the lifting lug 4 is rotatably connected to the connecting member 31 , and the axis of rotation is perpendicular to the plane formed by the trajectory of the guiding element 3 and the axis of the clamping disk 1 .

[0027] Preferably, Figure 2 , Figure 3 As shown, the clamping disk 1 is a disc structure, and a connecting groove 11 is radially opened on its bottom surface, and at least three connecting grooves 11 are arranged along the circumferential array of the clamping disk 1, and claws 2 are slidably arranged in the connecting grooves 11, and the ends of the claws 2 protrude from the bottom surface of the clamping disk 1, and an adjusting screw 12 is arranged in parallel in the connecting groove 11, which passes through the corresponding claws 2, and a gear 13 is coaxially arranged at one end of the adjusting screw 12 located on the outer side of the clamping disk 1, and a coaxial sleeve of the outer side of the clamping disk 1 is provided with a gear ring 14, which is rotatably arranged around the axis, and the gear ring 14 is meshed with the gear 13, and all the adjusting screws 12 can be rotated simultaneously by rotating the gear ring 14, so that all the claws 2 can be controlled to move radially along the clamping disk 1 to achieve the purpose of clamping or releasing parts.

[0028] The above description is only a preferred embodiment of the present invention, and is not intended to be the only one or to limit the present invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A lifting device with posture adjustment function, characterized in that: include: A clamping disc (1) having at least three clamping claws (2) arranged in a circumferential array at its bottom, the clamping claws (2) being arranged to move radially along the clamping disc (1); A guiding element (3) is provided on the top of the clamping disk (1), a connecting piece (31) is provided on the guiding element (3), a first end of the guiding element (3) is located on the extension line of the axis of the clamping disk (1), a second end of the guiding element (3) is at a predetermined distance from the axis of the clamping disk (1), and the distance between the second end and the clamping disk (1) is smaller than the distance between the first end and the clamping disk (1), a plane formed by a trajectory of the guiding element (3) and the axis of the clamping disk (1) is perpendicular to the clamping disk (1), the trajectory of the guiding element (3) is a trajectory between the first end and the second end thereof, and the connecting piece (31) is movably arranged between the two ends of the guiding element (3); The connecting piece (31) is rotatably provided with a lifting lug (4); A counterweight (5) is provided between the top of the clamping disc (1) and the guide element (3), and is arranged to move along a predetermined trajectory. The direction of the predetermined trajectory is consistent with the direction of the trajectory of the guide element (3). The lower end of the predetermined trajectory is located on the extension line of the axis of the clamping disc (1). There is a predetermined distance between the upper end of the predetermined trajectory and the axis of the clamping disc (1), and the distance between the upper end of the predetermined trajectory and the clamping disc (1) is greater than the distance between the lower end of the predetermined trajectory and the clamping disc (1). The connecting member (31) and the counterweight (5) are connected via a rope (32), and the rope (32) passes around a portion where the first end of the guide element (3) intersects with the upper end of the predetermined track. When the connecting member (31) is at the first end of the guide element (3), the counterweight (5) is at the lower end of the predetermined track.

2. A sling with posture adjustment function according to claim 1, characterized in that: The lifting lug (4) is rotatably connected to the connecting piece (31), and the axis of rotation is perpendicular to a plane formed by the trajectory of the guiding element (3) and the axis of the clamping disk (1).

3. The sling with posture adjustment function according to claim 1, characterized in that: The clamping disc (1) is a disc structure, and a connecting groove (11) is radially opened on its bottom surface, and at least three connecting grooves (11) are arranged in a circumferential array along the clamping disc (1), and claws (2) are slidably arranged in the connecting grooves (11), and the ends of the claws (2) protrude from the bottom surface of the clamping disc (1), and an adjusting screw rod (12) is arranged in parallel in the connecting groove (11), and passes through the corresponding claws (2), and a gear (13) is coaxially arranged at one end of the adjusting screw rod (12) located outside the clamping disc (1), and a coaxial sleeve is provided with a gear ring (14) outside the clamping disc (1), which is arranged to rotate around an axis, and the gear ring (14) is meshed with the gear (13).

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